Building-block.



No. 861,348. PATENTED JULY so, 1907. F. BALTZ.

BUILDING BLoaK,

APPLICATION FILED JULY 18, 1906.

2 SHEETS-SHEET 1.

No. 861,348. YPATENTED' JULY 30, 1907.

' F. BALTZ.

BUILDING BLOCK.

APPLICATION FILED JULY 18. 190B.

2 SHEETS-SHEET 2.

' UNITED STATES TENT ornron.

FERDINAND BAT/IZ, 0F MCMECIIEN, WEST VIRGINIA, ASSIGNOR (ll ONE-HALF TOADAM BALTZ, OF llIcMEC-IIEN, WEST VlltGINIA.

BUILDING-BLOCK.

Specification of Letters Patent.

Patented July 30, 1907.

To all whom it "may concern:

Be it. known that I, FERDINAND BALTZ, a citizen of the United States ofAmerica, and a resident of Me- Mechen, county of Marshall, and State ofWest Virginia, have invented certain new and useful Improvements inBuilding-Blocks, of which the following is a specification.

My invention relates to new and useful improvements in building blocks,and more particularly to a' hollow tile or block adapted for use inbuilding construction; and it consists in the particular construction,arrangement and combination of parts which will hereinafter be fullydescribed.

The object of my invention is to provide a block having positiveinterlocking means;

A further object is to provide a building block for mounting adjacent toa window'which is so constructed as to in no way interfere with theoperation of the ordinary window-weights.

Further objects of the invention will be made apparent hereinafter.

In describing the invention in detail, reference'is herein had to theaccompanying drawings, forming a part of this specification, in whichFigure l is a perspective view of a small portion of a building wall,illustrating tl i invention, a main wall block and a corner block beingshown fitted together; Fig. 2 is a perspective view of a main wallblock; Fig. 3 is a similar view of an angular block which isparticularly adapted for forming an angle between dormer windows,recesses for window weights being illustrated therein; Fig. 4 is asimilar view of a main Wall block which is adapted for locating adjacentto a window to admit of the free passage of thewindow weights; and

Fig. 5 is an end elevation of a block constructed in accordance withFig. 4.

Referring to the accompanying drawings in which like referencecharacters denote similar parts throughout the several views; 1,indicates a main wall block, which is employed in the construction ofbuilding walls, the same comprising front and rear vertical faces 2 and3, top and bottom horizontal panels 4 and 5, and a central verticalstrengthening panel or wall 6.

Interlocking ends are formed by projecting the faces 2 and 3, at one endbeyond the panels 4 and .5, and 6, and by projecting the said panels 4,5, and 6, at the opposite end beyond the faces 2 and 3, as shown. As isapparent, the ends of two adjacent blocks placed end to end willinterlock, the projecting faces of the one block closely embracing theprojecting panels of the other.

The upper edges of the faces 2 and 3, project beyond the plane of thetop panel 4, forming a channel in which fits closely the bottom panel 5,of a similar block, which panel is of greater thickness than the toppanel 4, and extends below the lower edges of said faces 2 and 3. 5t

In constructing a building wall from the blocks just. described, theblocks are laid in tiers in superimposed relation, breaking joints, andbeing interlocked in evident manner wherever a joint occurs at theabutting ends of the several blocks, thereby forming a rigid wall.

The top and bottom panels 4 and 5, are each provided with one or moreregistering apertures 10, which serve as draft openings for admitting ofa free circulation of air within the walls formed by the same.

In the formation of corners, ells, angles and the like, I provide ablock of especial construction, which is indicated by the referencenumeral 7, this block with the outer end 8, thereof, closed, and the endof the upper edge of the rear face is cut so as to be disposed flushwith the top panel 4, to admit of receiving the extension of the bottompanel 5, of the superimposed tier.

In the formation of tiling blocks for abutment with a window frame, thetop and bottom panels are shortened at the end adjacent to said windowforming recesses 9, for the purpose of receiving the usual weights andcords, permitting free movement of the latter, while at the same timethe adjacent ends of the faces and the central vertical panel abutclosely against the window frame.

For corner or bay windows, which are separated only by a slight space, Iprefer the form of block shown in in Fig. 3, wherein the recesses 9,form the weightanu cord-receiving chambers, one of such recesses servingfor the cords and Weights on one of the windows and the recess at theopposite end serving in like capacity for the window adjacent. v

Having thus fully described my invention, what 1 claim as new and desireto secure by Letters Patent is:

A building block formed of vertical faces. horizontal panels, a centralpanel connecting said horizontal panels and projecting beyond the endsof said horizontal panels, 90 and terminating to the rear of the ends ofthe vertical faces.

Signed by me in the presence of two subscribing \vit HGSSGS.

- FERDINAND BAUlZ.

Witnesses 11. l DUNLAP, E. A. LENKARD.

